Making a team gather wood only

Ok, I have just had a long break from WC3 and have just decided to begin making a new campaign. I'm a little rusty on some of the things I used to think were easy, so I have a pretty noobish question about harvesting:

I have created a team which only has 4 peasants, a town hall and a lumbermill. I want the peasants to simply cut the trees nearby and gather wood. Whats the easiest way to do this?

I didnt want to use unit order because I think that will make them target only one tree for the whole game, normal AI scripts would make them build, attack etc and I didnt want to make a huge mass of triggers.

In the end I made a new AI using the AI editor and removed all of the build orders and attack squads, simply leaving the harvest - 10 peasants command. Unfortunately when I set them to use this AI nothing happens when I play the game and the peasants dont move.

Sorry if this has been asked before but I've been away a long time, and couldn't find an answer by searching.

Cheers,
SheepOfDoom

the best way i can think of is ordering the unit to target a random doodad.

First, Im assuming the peasents are controled by a computer player (what with the AI script) and not a human. I would do it as 2 triggers.
Trigger 1.
Get the peasents started
Event
Game Time = X (whenever they should start)
COndition
None
Action
Pick all Peasent owned by X and Do
Order Picked Unit to attack Random Unit from Unit Group matching matching unit is in region (The Forest) and Unit-classifaction is equal to Doodad

Next trigger uses basically the same action, but has a different event and condition.
Events
Unit leaves region (Region around the Lumber Mill)
Unit leaves region (Region around the Town Hall)
Condition
Unit-type of (Leaving unit ) is equal to Peasent
Owner of (leaving unit) is equal to Player X
Action
Order Leaving to to blah blah blah.

A trigger to stop the lumbering action when the trees run out would be a good idea to, but given how peasents normally act when out of trees its not a huge deal.

Thanks alot guys,
Will give it a try tonight and see how it goes :)

Cheers,
SheepOfDoom

errrr....AI Editor ?:)))

minimum working peasants - wood 4
if (number of (peasants harvesting wood) is less than 4) then send all peasants to gather wood etc.....